Thermal Propert...

The coefficient of superficial expansion of a solid is 2 × 10^–5/^oC. Its coefficient of linear expansion is

Coefficient of real expansion of mercury is 0.18 × 10^–5/^oC. If the density of mercury at 0^oC is 13.6 g/cc, its density at 473 K is

A cylindrical metal rod of length L_o is shaped into a ring with a small gap as shown. On heating the system

Two uniform brass rods A and B of length l and 2/ and radii 2r and r respectively are heated to the same temperature. The ratio of the increase in the volume of A to that of B is

A rod of sliver at 0^oC is heated to 100^oC. Its length is increased by 0.19 cm. Coefficient of cubical expansion of the silver rod is

A brass disc fits simply in a hole of a steel plate. The disc from the hole can be loosened if the system

An iron bar length 10 m is heated from 0^oC to 100^oC. If the coefficient of linear thermal expansion of iron 10 × 10^–6/^oC, the increase in the length of bar is

Surface temperature of a lake is 2^oC. Find the temperature of the bottom of the lake

Two rods, one of aluminium and the other made of steel, having initial length l₁ and l₂ are connected together to form a single rod of length l₁ + l₂. The coefficient of linear expansion for aluminium and steel are α_a and α_s respectively. The length of each rod increases by the same amount when their temperature are raised by t^oC, then the ratio of l₁/(l₁ + l₂)

Two solid spheres of the same material have the same radius but one is hollow while the other is solid. Both spheres are heated to same temperature. Then,